Surface pattern for a paper product



The sole FIGURE is a plan view of one side of the surface pattern for a paper product showing our new design;

The broken lines shown around the borders of the FIGURE merely indicate that a specific length and width of paper product form no part of the claimed design, and that the claimed design repeats uniformly throughout the length and width of the paper product. The broken lines do not form any part of the claimed design. 

The ornamental design for a surface pattern for a paper product, as shown and described. 